45#鋼管批發
無錫興百優(you)金屬制品(pin)有限(xian)公(gong)司 正品(pin)銷售 45#鋼管 現貨供應
45#鋼管通常適用無縫鋼管的材質,無縫鋼管又(you)分為(wei)GB8162、GB8163這(zhe)兩個常(chang)用的,但45#鋼只有GB8162才有,45#是機械加工的一(yi)種常(chang)用材質。
45#鋼管(GB/T14975-2002)是廣泛用于化工(gong)、石(shi)油、輕紡、醫療、食品、機械等工(gong)業的(de)耐腐蝕管道和結構(gou)件(jian)及零件(jian)的(de)不(bu)銹鋼制(zhi)成的(de)熱軋(擠、擴(kuo))和冷拔(ba)(軋)。
熱處理(li)推薦熱處理(li)溫(wen)度:正火(huo)850,淬火(huo)840,回火(huo)600.
45號鋼(gang)為 優質(zhi)碳(tan)(tan)素結構用(yong)(yong)(yong)(yong)鋼(gang) ,硬(ying)度(du)(du)(du)(du)(du)不高易(yi)切削加工,模具中常(chang)用(yong)(yong)(yong)(yong)來做模板,梢子(zi),導柱等,但(dan)須熱(re)處(chu)理(li)(li) 。 1. 45號鋼(gang)淬(cui)火(huo)(huo)后沒(mei)有(you)回火(huo)(huo)之前,硬(ying)度(du)(du)(du)(du)(du)大于(yu)HRC55(最高可(ke)(ke)達(da)HRC62)為合格。 實際(ji)應(ying)(ying)用(yong)(yong)(yong)(yong)的(de)最高硬(ying)度(du)(du)(du)(du)(du)為HRC55(高頻淬(cui)火(huo)(huo)HRC58)。 2. 45號鋼(gang)不要采(cai)用(yong)(yong)(yong)(yong)滲碳(tan)(tan)淬(cui)火(huo)(huo)的(de)熱(re)處(chu)理(li)(li)工藝。 調(diao)(diao)質(zhi)處(chu)理(li)(li)后零(ling)件具有(you)良好的(de)綜合機械性能,廣(guang)泛應(ying)(ying)用(yong)(yong)(yong)(yong)于(yu)各種(zhong)重(zhong)要的(de)結構零(ling)件,特別是那些(xie)在(zai)(zai)交變(bian)負(fu)荷下(xia)工作的(de)連桿、螺栓、齒輪及軸類等。但(dan)表(biao)面(mian)(mian)(mian)硬(ying)度(du)(du)(du)(du)(du)較(jiao)低,不耐(nai)磨。可(ke)(ke)用(yong)(yong)(yong)(yong)調(diao)(diao)質(zhi)+表(biao)面(mian)(mian)(mian)淬(cui)火(huo)(huo)提高零(ling)件表(biao)面(mian)(mian)(mian)硬(ying)度(du)(du)(du)(du)(du)。 滲碳(tan)(tan)處(chu)理(li)(li)一般用(yong)(yong)(yong)(yong)于(yu)表(biao)面(mian)(mian)(mian)耐(nai)磨、芯部耐(nai)沖(chong)(chong)擊的(de)重(zhong)載零(ling)件,其耐(nai)磨性比調(diao)(diao)質(zhi)+表(biao)面(mian)(mian)(mian)淬(cui)火(huo)(huo)高。其表(biao)面(mian)(mian)(mian)含碳(tan)(tan)量0.8--1.2%,芯部一般在(zai)(zai)0.1--0.25%(特殊情況下(xia)采(cai)用(yong)(yong)(yong)(yong)0.35%)。經(jing)(jing)熱(re)處(chu)理(li)(li)后,表(biao)面(mian)(mian)(mian)可(ke)(ke)以獲得很高的(de)硬(ying)度(du)(du)(du)(du)(du)(HRC58--62),芯部硬(ying)度(du)(du)(du)(du)(du)低,耐(nai)沖(chong)(chong)擊。 如果(guo)用(yong)(yong)(yong)(yong)45號鋼(gang)滲碳(tan)(tan),淬(cui)火(huo)(huo)后芯部會出現硬(ying)脆(cui)的(de)馬氏體(ti),失去滲碳(tan)(tan)處(chu)理(li)(li)的(de)優點。現在(zai)(zai)采(cai)用(yong)(yong)(yong)(yong)滲碳(tan)(tan)工藝的(de)材料,含碳(tan)(tan)量都不高,到(dao)(dao)(dao)0.30%芯部強度(du)(du)(du)(du)(du)已經(jing)(jing)可(ke)(ke)以達(da)到(dao)(dao)(dao)很高,應(ying)(ying)用(yong)(yong)(yong)(yong)上不多見(jian)。0.35%從來沒(mei)見(jian)過(guo)實例,只在(zai)(zai)教科書里有(you)介紹。可(ke)(ke)以采(cai)用(yong)(yong)(yong)(yong)調(diao)(diao)質(zhi)+高頻表(biao)面(mian)(mian)(mian)淬(cui)火(huo)(huo)的(de)工藝,耐(nai)磨性較(jiao)滲碳(tan)(tan)略差。 GB/T699-1999標準規定(ding)的(de)45鋼(gang)推薦熱(re)處(chu)理(li)(li)制(zhi)度(du)(du)(du)(du)(du)為850℃正火(huo)(huo)、840℃淬(cui)火(huo)(huo)、600℃回火(huo)(huo),達(da)到(dao)(dao)(dao)的(de)性能為屈服(fu)強度(du)(du)(du)(du)(du)≥355MPa GB/T699-1999標準規定(ding)45鋼(gang)抗拉強度(du)(du)(du)(du)(du)為600MPa,屈服(fu)強度(du)(du)(du)(du)(du)為355MPa,伸長(chang)率為16%,斷面(mian)(mian)(mian)收(shou)縮率為40%,沖(chong)(chong)擊功(gong)為39J
無錫(xi)興百(bai)優金屬公司的經營理念:“同樣(yang)(yang)的產品比質量、同樣(yang)(yang)的質量比價格(ge)、同樣(yang)(yang)的價格(ge)比服(fu)務、 同樣(yang)(yang)的服(fu)務比信(xin)譽(yu)”。
本公司不僅自身生產無縫鋼管還于成都鋼鐵集團,湖北新冶鋼集團,包頭無縫鋼管廠,天津無(wu)縫鋼(gang)(gang)管(guan)(guan)(guan)集(ji)團,廣州(zhou)聯眾、長城(cheng)特鋼(gang)(gang)、華新麗(li)華、久(jiu)立(li)(li)特鋼(gang)(gang)、溫州(zhou)寶豐、山西(xi)太鋼(gang)(gang)、上海寶鋼(gang)(gang)、建(jian)立(li)(li)長期業務往(wang)來,常年銷售規格范(fan)圍∮4mm-1220mm×1mm-120mm的(de)無(wu)縫鋼(gang)(gang)管(guan)(guan)(guan)、不(bu)銹鋼(gang)(gang)管(guan)(guan)(guan)、不(bu)銹鋼(gang)(gang)板、不(bu)銹鋼(gang)(gang)棒(bang)材(cai)(cai)、不(bu)銹鋼(gang)(gang)方矩管(guan)(guan)(guan)、板材(cai)(cai)、輸送流體管(guan)(guan)(guan)、高(gao)、中(zhong)低壓鍋爐管(guan)(guan)(guan)、石油裂化管(guan)(guan)(guan)、化肥專用(yong)管(guan)(guan)(guan)、船舶用(yong)管(guan)(guan)(guan)及國產進口合金管(guan)(guan)(guan)等。
無錫興百優金(jin)屬制品有(you)限公司 生(sheng)產銷售(shou) 45#鋼管(guan) 規(gui)格齊全 價格優惠 歡迎(ying)選購!